Dell U2713HM - Unbeatable performance out of the box
by Chris Heinonen on October 4, 2012 12:00 AM ESTDell U2713HM Color Quality
When testing the Dell U2713HM my standard way, using a 2010 Macbook Air, my initial performance numbers were not very good at all. Some investigation found that on the MacBook Air when using DisplayPort sends YCbCr color information instead of RGB color information, and so I was getting worse results. Using a StarTech MiniDP to DVI adapter let me drive the Dell at full resolution but in the RGB colorspace. This issue didn’t happen with an ATI or NVIDIA card, so I have to think it was something specific to the MacBook. When using this display, make sure to check the video signal format, as it handles RGB much better.
Dell includes a report for how the monitor should perform, and unlike other vendors that promise a certain dE, Dell shows what they tested and what the results are. These only apply to the included sRGB mode in the display, so you should make sure to use that, and reset your video card LUT, to achieve these results.
Our targets for calibration are D65 for the white point, 200 nits of light output, a gamma of 2.2, and a minimum black level. Once set up correctly, using the included profile and sRGB mode, the Dell provides the best out-of-box performance that I’ve measured so far. The average dE is only 3.15 and the maximum value is only 5.75, which is lower than the average of most displays. Dell includes a calibration report in the box and in this case it really seems to have paid off. For most people, this will likely be good enough performance as it is quite accurate and the errors should be mostly invisible to the naked eye.

With such stellar out-of-the-box numbers I had really high hopes for how the Dell would perform after a calibration. For reference, in YCbCr mode I only managed to calibrate to a dE of around 3, which is far worse than the 1.62 from RGB mode. This outperforms almost all of the 27” displays seen to this point, and those that do out-perform it cost significantly more. There are no issues with the grayscale or anything else after calibration, and you wind up with a very nice, accurate image. It is significantly better than the pre-calibration one, but many users will be fine without the extra step.

When targeting 100 nits of light output for print work, we see a dE of 1.85, which is good but not as excellent as the 200 nits numbers are. On this test the best monitors manage to do much better with those tricky shades of blue than the Dell does, but this doesn’t really worry me that much. Blue is the color we are least sensitive to, so errors in blue are more acceptable than errors in greens or reds. The Dell produces very accurate shades of green and well-rendered skin tones, making it a good choice for more color sensitive work. It isn’t as excellent as the NEC is, but it is around half the price.

Overall the Dell has very good results on the calibrated results, and the best results that I have seen by far on the pre-calibration numbers. If you want accurate color but don’t own equipment to do the calibration yourself, Dell provides results better than anything else I have seen and the included calibration report and testing hopefully means this isn’t just a random sample that happens to be excellent.
As with all the LED backlit 27” IPS displays, we see the sRGB gamut being covered but not AdobeRGB gamut coverage. The Dell manages to cover over 79% of the AdobeRGB gamut, which is pretty good for a panel without special backlighting, so for normal sRGB work it should do a very good job.










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blackmagnum - Thursday, October 04, 2012 - link
I find Dell's monitors have good price/ performance ratio. They might not be as cheap as the Koreans, but last a while longer and have better support. When will they have 4K monitors... Replyp05esto - Thursday, October 04, 2012 - link
Agreed, if you are doing professional work and using the monitor day in and day out what's a couple hundred extra dollars? For gaming and casual stuff, then sure....take a chance. Replyrs2 - Thursday, October 04, 2012 - link
A couple hundred? Probably nothing. But when you can get a roughly equivalent monitor from Korea for ~$320, the extra $380 dollars is enough to buy a second 2560x1440 display and run them in a dual-monitor setup. Replyhrrmph - Saturday, October 06, 2012 - link
First 27" with an all-USB 3.0 Hub. That alone is worth something.Amazon has them available for pre-order at $705:
http://www.amazon.com/Dell-U2713HM-CVN85-27-Inch-L...
I've got one on order and I hope these are going to last as long as the several HP LP2465 monitors that I've been using for most of a decade. The USB hubs in those were incredibly reliably as well, and I'm hoping that the all-USB 3.0 hub in this Dell 27" model is up to the task.
As far as value goes, sure the Korean models might be good for a second or third monitor, but with the Dell you *should* get grade A quality (at least for an enthusiast, if not for the professional), under a fairly full kit of options and functionality.
For something that I'm hoping might last 10 or 15 years, like my other monitors, the probable annual amortized cost difference is fairly negligible.
Too bad they had to drop to 24-bit (from 30-bit) to get the cost under control. Still, if the USB 3.0 hub can handle everything I throw at it and the monitor can still offer up better resolution than my existing 1920 x 1200 monitors, then its a great value.
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sonny73n - Sunday, October 07, 2012 - link
The Korean monitors (Achieva, Yamasaki... just to name a few) you're talking about use LG eIPS display. Actually those LG displays are rejects or did not meet quality requirements for Dell or HP. You'll probably get at least a couple dead pixels on those Korean monitors. Who knows what other defects they might have. That's why they're much cheaper.Ever heard of Dell Zero dead pixel policy? Reply
TheJian - Monday, October 08, 2012 - link
ROFL@anyone willing to give their CC# to a Korean company from ebay etc. Even the ones on Amazon have 1 review, a Gmail address for returns/help, no about page, a blank faq page, no phone# to call etc. How dumb can you be to buy one of these? If you don't even own a domain I can't be bothered to even think about your company as relevant to my purchases...LOL.The only way this would be an option is if I WAS IN KOREA and down the street from your company :)
Dell is the wiser choice here (or any other US based company with an actual website and a phone#). Reply
Deo Domuique - Thursday, October 04, 2012 - link
How do you know the Dell lasts a while longer? Like we know everything about the Korean monitors.It's double price. If it was 100 or 150$ more, we could talk, but double price? Certainly I'd prefer a Korean monitor, but unfortunately a little hard to find in my country, yet... Reply
ricardoduarte - Thursday, October 04, 2012 - link
I completly disagree with your coment, we had expensive Dell monitors at my previous workplace, and performance wise i could not see any distinct visual increment in performance from dell screens at our work from any other screens. (Maybe they weren't that good). But my point is that Dell screens when they are better they are never much better (if we consider day-to-day usage not with synthetic benchmarks) which to me does not justify the premium that these screens cost. I have found to be honest Dell screens always too expensive, for what they offer since their performance is just marginally better to the koreans screens you mention, but with a premium price when compared to these.With respect to the korean comments, i still have working 17" LG on a spare PC, screen thats is almost 7years old. I have also a 21" samsung that is 3 years old which has never gave a problem or even dead pixels.
I also have 2 19" Asus (which are not korean) that i used for 6years non stop without ever gaving a problem or even dead pixels which are now stored since i got two phillips screens 23". Reply
rituraj - Thursday, October 04, 2012 - link
Well, I think by "Korean" Deo didn't mean Samsung or LG, but those brands that you have never or hardly heard of. Sam & LG are not that cheap (and therefore quite reliable too) ReplyPenti - Thursday, October 04, 2012 - link
Too expensive? Dell monitors are about the most reasonable priced among monitors, and it's competitors aren't normally cheaper. My Samsung has a Taiwanese panel btw so I'm not sure why your on about brands. Brands it self doesn't mean quality. Most has used awful components like faulty Taiwanese caps that give up in a couple of years (I have changed some of mines). The OP was talking about no-name Korean brands like Yamakasi, Achieva Shimian etc. They could be seen equal to say a Meizu M9 Android phone or Ainol tablets and even lesser know stuff i.e. is produced by lesser skilled teams with no markups/margins to speak of. With no manufacturing capabilities of their own in most cases. In most cases with some drawbacks. With screens there is also other grades/classifications too. Backlight and the panel assembly might not be as good either. Philips doesn't produce monitors btw it's the Hong-Kong based TPV that does so since about 2005, which now also holds the stake in designing/development of, and most of the assembly of (which are quite popular in Europe btw) Philips television sets.At least here in Sweden Dell's aren't more expensive and rather cheap compared to the same class HP, Asus, Acer, NEC, LG, BenQ, Samsung, Eizo etc. Any Asus that uses a IPS-panel will have a Korean panel in it for that matter. You don't have much to choose from here except LG Display and Samsung Display when it comes to [IPS-based] desktop monitors, which also happens to be the biggest of the manufacturers. Those that orders the panels as components and puts together their own stuff like the no-names though can half the price of these monitors. But they use much worse electronics and IC's driving the monitors and is much less engineered. They simply can't spend 50-100 dollar on those parts.
You see instantly the difference when your on a none-TN monitor compared to TN monitors with poor viewing angles and you should definitely be capable to tell the difference in an office environment, as they was out when viewed from an angle and the colors shift terribly just sitting straight in front of it, unless you used cheap monitors. Cheap monitors doesn't in many cases even have proper adjustable stands for that matter. It's not like you need the whole AdobeRGB color space when your in an Office document either. But it also is the whole of the sums that counts decent adjustable stands, panel quality and type, inputs and input lag, viewing angles and resolution. Backlight also impacts on power consumption if that is important. You don't get all of that in cheaper alternatives if you don't want to make some fairly large compromises, you won't get the same amount of control over the monitor and it's only recently you have been able to get high-res panels in those no-name monitors. If that is not what you want then why wouldn't you just buy some lower res 1920x1080 MVA or e-IPS monitor? They are also easier to drive from notebooks. Plus cheaper than Ebay imports. But you might need to accept dithering there if your not careful. Reply